There was a directry refactoring a few weeks ago in osmo-gsm-tester and
this path was not updated correctly.
Change-Id: I580cd9d4a602b3ed1839fb0990ac3816c5e42cbe
Since osmo-gsm-tester.git Change-Id Ieca65b71b543c44cfcec8e83efd0fe053c432e55,
the -c parameter holds the config file and not the directory where it is contained.
Change-Id: I9aca57c4dd3180367eb17ec92177b90a9c411a6a
Since osmo-gsm-tester.git I364e0859c0851b9167907a4d948b659a0f6a19fb the
example/ directory has been renamed to sysmocom/
Change-Id: I4c7516d2eb9636d37391a81dc9d484c0c04d7191